Step 4: Install Cladding

There are two means for installation of cladding over FPIS with multiple options:

Direct Cladding Attachment Through FPIS to Wood Stud

Cladding Attachment Through Vertical Furring (Wood Shown) Parallel to Wood Studs

(a) Cladding
(b1) Fastener (FPIS to Stud) per FPIS manufacturer
(b2) Fastener (Cladding to Stud) per Table 1
(b3) Fastener (FPIS to Stud) per FPIS manufacturer
(b4) Fastener (Furring to Stud) per Table 2
(b5) Fastener (Cladding to Furring)
(c) Wood Furring
(d) FPIS
(e) Framing
(f) Cavity Insulation
(g) Wall Finish

Light-weight Cladding (≤3 psf) Attachment Through Maximum 2"-thick FPISto Minimum 7/16"-thick Wood Structural Panel (WSP) Sheathing

(a) Cladding
(b1) Fastener (WSP to Stud) per code
(b2) Fastener (FPIS to Stud or WSP) per FPIS manufacturer
(b3) Fastener, Nail or Screw (Cladding to WSP) per Table 3
(c) WSP
(d) FPIS
(e) Framing
(f) Cavity Insulation
(g) Wall Finish

• Cladding or furring fasteners extending through foam sheathing must be of sufficient length to penetrate the wood frame wall substrate (wood framing or wood sheathing if present and allowed as a nail-base for the specified siding).

• Cladding attachment schedule (fastener type, size, spacing, and length) must be in accordance with approved construction documents or, if not specified on construction documents, in accordance with the more stringent of:

  • the cladding manufacturer instructions,
  • the cladding attachment specified in the locally applicable building code, and
  • the provisions for specifying attachment through foam sheathing found in this Quick Guide: Cladding Connections to Wood Frame Walls with FPIS ci

For additional information on cladding installation over FPIS, refer to the application page on Cladding Connections. 

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